• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.149-150
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• 2021

Earthwork is the starting work of construction process, which has the greatest impact on the productivity of the construction project among the works. However, it is difficult to derive accurate productivity becuase the earthwork plan is affected by geological condition of the jobsite. Therefore, a simulation model for productivity analysis of earthwork was developed using CYCLONE modeling method in this study. In this paper, simulation model was made considering the impact factors of earthwork productivity. The proposed model can be utilized for sensitivity analysis in future studies.

• 한국도로학회논문집
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• 제19권5호
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• pp.153-162
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• 2017

PURPOSES : This study was conducted to analyze the effects arising from extending the duration of nighttime road construction on improving road quality and durability. METHODS : Most previous studies estimating the social cost of various construction conditions did not consider road pavement cooling time as a factor in improving road pavement quality. This study investigated the feasibility of achieving higher road quality and durability by extending the duration of nighttime road construction time extension. For this investigation, the effects of such an extension on traffic conditions were analyzed based on micro-simulation studies and scenario-based cost-benefit analyses, using factors including traffic volume, delay, construction cost, and road pavement cooling time. RESULTS : The results of the traffic simulation studies and cost-benefit analyses indicate that the current road construction method that emphasizes completing nighttime road construction by 6 a.m. reduces pavement life while causing relatively little traffic delay. If the night construction time is instead extended to 2 p.m., road pavement lifetime is increased, reducing road re-construction cost. These savings are greater than the cost of congestion arising from extending the duration of nighttime construction. CONCLUSIONS : The current nighttime construction durations need to be extended in order to efficiently manage roads and reduce road management costs.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2006년도 정기학술발표대회 논문집
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• pp.574-578
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• 2006

시뮬레이션은 건설관리를 위한 도구로써 많은 잠재력을 가지고 있으나, 국내의 경우 대단히 제한된 범위에서 마이크로 프로세스의 공정 평가에 적용을 시도하고 있는 단계에 있다. 시뮬레이션을 건설 공정에 적용하기 위해서는 현장 특성을 반영한 입력 데이터 수집과 모델 구축에 상당한 노력이 필요하며, 건설 주요 공정에 대한 시뮬레이션 모델을 구축하여 적용성을 검증하는 것은 필수적인 프로세스라고 할 수 있다. 본 연구에서는 시뮬레이션 모델 구축 방법론을 소개하고 현장 측정 데이터와의 비교 ${\cdot}$ 분석을 통해 모델을 검증하였다.

• 한국건설관리학회논문집
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• 제7권1호
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• pp.80-88
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• 2006

일반적으로 건설 그래픽 시뮬레이션은 기하모델에 국한되어 건설장비 및 재료의 물리적인 특성을 반영하지 못하고 있어 건설과정을 현실과 유사하게 모사하는데 있어 그래픽 시뮬레이션에 한계를 보이고 있다 된 연구에서는 기하모델에 국한된 시뮬레이션 시스템의 기능개선을 도모하기 위하여 크레인 작업에 한정하여 크레인 케이블의 추진동과 같이 건설자재 및 장비의 물리적 특성을 고려한 물리적 모델과 기하모델과의 연계를 통하여 기존 현장에서 고려하지 못한 건설장비의 시뮬레이션의 한계를 극복하고자 하였다. 본 연구에서 적용된 타워크레인 활차의 이동과 붐의 회전에 따른 케이블의 흔들림에 관한 운동방정식을 세우고 수치해석 절차를 거쳐 이 결과를 그래픽 시뮬레이션을 통하여 시각적으로 묘사함으로써 물리적 모델링에 근거한 현실적 건설과정 묘사로 향후 복잡 다변화되고 있는 건설현장에서의 장비 운영에 따른 사전 안정성 확보와 시공성 향상에 이바지 할 수 있을 것이며, 여러 유사관련 분야에서 활용될 것으로 기대된다.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.1043-1050
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• 2022

Markov chains and Monte Carlo Simulation were applied to account for the probabilistic nature of pavement deterioration over time using data collected in the field. The primary purpose of this study was to evaluate pavement network performance of Western Australia (WA) by applying the existing pavement management tools relevant to WA road construction networks. Two approaches were used to analyze the pavement networks: evaluating current pavement performance data to assess WA State Road networks and predicting the future states using past and current pavement data. The Markov chains process and Monte Carlo Simulation methods were used to predicting future conditions. The results indicated that Markov chains and Monte Carlo Simulation prediction models perform well compared to pavement performance data from the last four decades. The results also revealed the impact of design, traffic demand, and climate and construction standards on urban pavement performance. This study recommends an appropriate and effective pavement engineering management system for proper pavement design and analysis, preliminary planning, future pavement maintenance and rehabilitation, service life, and sustainable pavement construction functionality.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.34-35
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• 2021

Currently, the Korean Smart Construction Corporation aims to stimulate overseas expansion of smart construction technology centered on Expressway development. In addition, the integrated classification system of construction information with Work Breakdown Structure(WBS) is currently being established in Korea, but its application to the construction industry is limited. In this study, data generation using simulation is carried out at the lowest level of WBS presented by the Korea Expressway Corporation, and detailed process productivity is predicted by site conditions.

• 한국건설관리학회논문집
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• 제6권1호
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• pp.73-79
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• 2005

This paper, introduces a Stochastic Project Scheduling Simulation system (SPSS III) developed by the author to predict a project completion probability in a certain time. The system integrates deterministic CPM, probabilistic PERT, and stochastic Discrete Event Simulation (DES) scheduling methods into one system. It implements automated statistical analysis methods for computing the minimum number of simulation runs, the significance of the difference between independent simulations, and the confidence interval for the mean project duration as well as sensitivity analysis method in What-if analyzer component. The SPSS 111 gives the several benefits to researchers in that it (1) complements PERT and Monte Carlo simulation by using stochastic activity durations via a web based JAVA simulation over the Internet, (2) provides a way to model a project network having different probability distribution functions, (3) implements statistical analyses method which enable to produce a reliable prediction of the probability of completing a project in a specified time, and (4) allows researchers to compare the outcome of CPM, PERT and DES under different variability or skewness in the activity duration data.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.353-356
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• 2007

The purpose of this study is to propose development of Schedule based Architectural Construction Simulation System. In this study (or paper), we analysis the simulation system concept ant) its characteristics, and analyze the main functions simulation system and the range of functions which are already used currently. Therefore, we could find the limit of the present simulation system. and propose more effective solutions to develop Schedule based Architectural Construction Simulation System.

• 산업공학
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• 제2권2호
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• pp.51-62
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• 1989

A computer-aided simulation modeling system has been developed to allow the automatic construction of complete discrete simulation models for queueing systems. Three types of knowledge are used in the specification and construction of a simulation modeling: Knowledge of queueing system, simulation modeling, and a target simulation language. This knowledge has been incorporated into the underlying rule base in the form of extraction and construction rule, and implemented via the expert system building tool, OPS5. This paper suggested a knowledge based approach for automatic programming to enable a user who lacks modeling knowledge and simulation language expertize to quickly build executable models.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.787-790
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• 2007

최근 건설프로젝트가 대형화 복잡화 되어감에 따라 협업 및 정보 공유 등의 많은 문제들이 발생하고 있다. 이러한 문제점을 해결하기 위하여 프로젝트 기획 단계부터 상황을 예측하여 업무의 효율성이 증대되도록 데이터를 생성, 공유, 관리하는 차세대 가상건설 시스템 기술 개발에 관한 연국가 진행 중에 있다. 본 연구는 차세대 가상건설 시스템 개발의 일환으로서 기획 단계를 지원해 줄 기획 시뮬레이션 시스템 개발을 위한 기초 연구이다. 본 연구에서는 선행연구 분석을 통한 기획단계 시뮬레이션 시스템에 대한 수요 분석을 실시하고, 다음으로 VR 및 3D 캐드 관련 기존 시스템의 사례 조사를 통하여 시스템 개발 방향을 설정하고자 한다. 또한 도출된 결과를 기반으로 본 시스템의 주요 기능들을 도출하여 시스템 구성 개념을 제시하고 한다.